Pump



FIG. 1 is a top, front and right side perspective view of a pump showing our new design;

FIG. 2 is a top, front and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines are included for the purpose of illustrating portions of the pump that form no part of the claimed design. 

CLAIM The ornamental design for a pump, as shown and described. 